| 摘要 |
A diagnostic operation method for an object state with determination of an intermediate stage where the object is described with at least one diagnostic parameter X, the range of values being split into 3 intervals, with reference of the state of each object to one of 3 states – negative, intermediate or positive, by means of specified measurement parameter in each object by means of measurement technique, numeration of probability functions of negative and positive states, membership functions of specified 3 states and boundaries of an intermediate interval, probability calculation classification errors and diagnostic accuracy. Herewith probability of the errors of the first (second) kind are calculated as a probability function magnitude of the positive (negative) state with parameter value X equal to the first X (second X2) boundary of the intermediate interval that is according to formulas:= F2 (X = X1), = F1 (X = X2),where () – probability of error of1-st (2-nd) kind, F1, 2 - probability functions of a negative (positive) state,the accuracy of reference of object to a negative (positive) state is calculated according to formula:V1 = 1 - , V2 = 1 - ,a mean probability of classification error K and mean diagnostic accuracy VK according to formulas is calculated:K = ( + ) / 2, VK = (V1 + V2) / 2,the specified actions are performed in unattended mode with a computer using a computer program. |
